長按手勢實現

//創建手勢

UILongPressGestureRecognizer *longGesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)];

//將創建好的手勢添加到你的控件上

[view addGestureRecognizer:longGesture];

//添加事件

-(void)longPress:(UIGestureRecognizer *)gr

{
    //確保長按只執行一次
   if (gr.state==UIGestureRecognizerStateBegan) {
        NSLog(@"long press ");

 }